AMD Radeon R9 255 OEM vs NVIDIA GeForce GT 630

VS

AMD Radeon R9 255 OEM

NVIDIA GeForce GT 630

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 255 OEM and 1024MB VRAM GeForce GT 630 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 255 OEM 's Advantages

Released 1 years and 7 months late

Boost Clock930MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (73.60GB/s vs 28.80GB/s)

416 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R9 255 OEM +206%

0.952 TFLOPS

GeForce GT 630

0.311 TFLOPS

Radeon R9 255 OEM

VS

GeForce GT 630

Graphics Card

Dec 2013

Release Date

May 2012

Volcanic Islands

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

900 MHz

Base Clock

-

930 MHz

Boost Clock

-

1150 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

128bit

73.60GB/s

Bandwidth

28.80GB/s

Render Config

8

Compute Units

-

SM Count

2

512

Shading Units

96

32

TMUs

16

ROPs

4

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

14.88 GPixel/s

Pixel Rate

3.240 GPixel/s

29.76 GTexel/s

Texture Rate

12.96 GTexel/s

-

952.3 GFLOPS

FP32 (float)

311.0 GFLOPS

59.52 GFLOPS

FP64 (double)

25.92 GFLOPS

Board Design

65W

TDP

65W

250 W

Suggested PSU

250 W

No outputs

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin

Power Connectors

None

Graphics Processor

Cape Verde

GPU Name

GF108

Cape Verde PRX

GPU Variant

GF108-400-A1

GCN 1.0

Architecture

Fermi

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.5 billion

Transistors

0.585 billion

123 mm²

Die Size

116 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

2.1

5.1

Shader Model

5.1

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